aoqi@0: /*
aoqi@0:  * Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
aoqi@0:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
aoqi@0:  *
aoqi@0:  * This code is free software; you can redistribute it and/or modify it
aoqi@0:  * under the terms of the GNU General Public License version 2 only, as
aoqi@0:  * published by the Free Software Foundation.  Oracle designates this
aoqi@0:  * particular file as subject to the "Classpath" exception as provided
aoqi@0:  * by Oracle in the LICENSE file that accompanied this code.
aoqi@0:  *
aoqi@0:  * This code is distributed in the hope that it will be useful, but WITHOUT
aoqi@0:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
aoqi@0:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
aoqi@0:  * version 2 for more details (a copy is included in the LICENSE file that
aoqi@0:  * accompanied this code).
aoqi@0:  *
aoqi@0:  * You should have received a copy of the GNU General Public License version
aoqi@0:  * 2 along with this work; if not, write to the Free Software Foundation,
aoqi@0:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
aoqi@0:  *
aoqi@0:  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
aoqi@0:  * or visit www.oracle.com if you need additional information or have any
aoqi@0:  * questions.
aoqi@0:  */
aoqi@0: 
aoqi@0: package com.sun.tools.doclets.formats.html;
aoqi@0: 
aoqi@0: import java.io.*;
aoqi@0: import java.util.*;
aoqi@0: 
aoqi@0: import com.sun.javadoc.*;
aoqi@0: import com.sun.tools.doclets.formats.html.markup.*;
aoqi@0: import com.sun.tools.doclets.internal.toolkit.*;
aoqi@0: import com.sun.tools.doclets.internal.toolkit.util.*;
aoqi@0: 
aoqi@0: /**
aoqi@0:  * Abstract class to print the class hierarchy page for all the Classes. This
aoqi@0:  * is sub-classed by {@link PackageTreeWriter} and {@link TreeWriter} to
aoqi@0:  * generate the Package Tree and global Tree(for all the classes and packages)
aoqi@0:  * pages.
aoqi@0:  *
aoqi@0:  *  <p><b>This is NOT part of any supported API.
aoqi@0:  *  If you write code that depends on this, you do so at your own risk.
aoqi@0:  *  This code and its internal interfaces are subject to change or
aoqi@0:  *  deletion without notice.</b>
aoqi@0:  *
aoqi@0:  * @author Atul M Dambalkar
aoqi@0:  */
aoqi@0: public abstract class AbstractTreeWriter extends HtmlDocletWriter {
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * The class and interface tree built by using {@link ClassTree}
aoqi@0:      */
aoqi@0:     protected final ClassTree classtree;
aoqi@0: 
aoqi@0:     private static final String LI_CIRCLE  = "circle";
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Constructor initializes classtree variable. This constructor will be used
aoqi@0:      * while generating global tree file "overview-tree.html".
aoqi@0:      *
aoqi@0:      * @param configuration  The current configuration
aoqi@0:      * @param filename   File to be generated.
aoqi@0:      * @param classtree  Tree built by {@link ClassTree}.
aoqi@0:      * @throws IOException
aoqi@0:      * @throws DocletAbortException
aoqi@0:      */
aoqi@0:     protected AbstractTreeWriter(ConfigurationImpl configuration,
aoqi@0:                                  DocPath filename, ClassTree classtree)
aoqi@0:                                  throws IOException {
aoqi@0:         super(configuration, filename);
aoqi@0:         this.classtree = classtree;
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Add each level of the class tree. For each sub-class or
aoqi@0:      * sub-interface indents the next level information.
aoqi@0:      * Recurses itself to add subclasses info.
aoqi@0:      *
aoqi@0:      * @param parent the superclass or superinterface of the list
aoqi@0:      * @param list list of the sub-classes at this level
aoqi@0:      * @param isEnum true if we are generating a tree for enums
aoqi@0:      * @param contentTree the content tree to which the level information will be added
aoqi@0:      */
aoqi@0:     protected void addLevelInfo(ClassDoc parent, List<ClassDoc> list,
aoqi@0:             boolean isEnum, Content contentTree) {
aoqi@0:         int size = list.size();
aoqi@0:         if (size > 0) {
aoqi@0:             Content ul = new HtmlTree(HtmlTag.UL);
aoqi@0:             for (int i = 0; i < size; i++) {
aoqi@0:                 ClassDoc local = list.get(i);
aoqi@0:                 HtmlTree li = new HtmlTree(HtmlTag.LI);
aoqi@0:                 li.addAttr(HtmlAttr.TYPE, LI_CIRCLE);
aoqi@0:                 addPartialInfo(local, li);
aoqi@0:                 addExtendsImplements(parent, local, li);
aoqi@0:                 addLevelInfo(local, classtree.subs(local, isEnum),
aoqi@0:                         isEnum, li);   // Recurse
aoqi@0:                 ul.addContent(li);
aoqi@0:             }
aoqi@0:             contentTree.addContent(ul);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Add the heading for the tree depending upon tree type if it's a
aoqi@0:      * Class Tree or Interface tree.
aoqi@0:      *
aoqi@0:      * @param list List of classes which are at the most base level, all the
aoqi@0:      * other classes in this run will derive from these classes
aoqi@0:      * @param heading heading for the tree
aoqi@0:      * @param div the content tree to which the tree will be added
aoqi@0:      */
aoqi@0:     protected void addTree(List<ClassDoc> list, String heading, Content div) {
aoqi@0:         if (list.size() > 0) {
aoqi@0:             ClassDoc firstClassDoc = list.get(0);
aoqi@0:             Content headingContent = getResource(heading);
aoqi@0:             div.addContent(HtmlTree.HEADING(HtmlConstants.CONTENT_HEADING, true,
aoqi@0:                     headingContent));
aoqi@0:             addLevelInfo(!firstClassDoc.isInterface()? firstClassDoc : null,
aoqi@0:                     list, list == classtree.baseEnums(), div);
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Add information regarding the classes which this class extends or
aoqi@0:      * implements.
aoqi@0:      *
aoqi@0:      * @param parent the parent class of the class being documented
aoqi@0:      * @param cd the classdoc under consideration
aoqi@0:      * @param contentTree the content tree to which the information will be added
aoqi@0:      */
aoqi@0:     protected void addExtendsImplements(ClassDoc parent, ClassDoc cd,
aoqi@0:             Content contentTree) {
aoqi@0:         ClassDoc[] interfaces = cd.interfaces();
aoqi@0:         if (interfaces.length > (cd.isInterface()? 1 : 0)) {
aoqi@0:             Arrays.sort(interfaces);
aoqi@0:             int counter = 0;
aoqi@0:             for (int i = 0; i < interfaces.length; i++) {
aoqi@0:                 if (parent != interfaces[i]) {
aoqi@0:                     if (! (interfaces[i].isPublic() ||
aoqi@0:                             Util.isLinkable(interfaces[i], configuration))) {
aoqi@0:                         continue;
aoqi@0:                     }
aoqi@0:                     if (counter == 0) {
aoqi@0:                         if (cd.isInterface()) {
aoqi@0:                             contentTree.addContent(" (");
aoqi@0:                             contentTree.addContent(getResource("doclet.also"));
aoqi@0:                             contentTree.addContent(" extends ");
aoqi@0:                         } else {
aoqi@0:                             contentTree.addContent(" (implements ");
aoqi@0:                         }
aoqi@0:                     } else {
aoqi@0:                         contentTree.addContent(", ");
aoqi@0:                     }
aoqi@0:                     addPreQualifiedClassLink(LinkInfoImpl.Kind.TREE,
aoqi@0:                             interfaces[i], contentTree);
aoqi@0:                     counter++;
aoqi@0:                 }
aoqi@0:             }
aoqi@0:             if (counter > 0) {
aoqi@0:                 contentTree.addContent(")");
aoqi@0:             }
aoqi@0:         }
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Add information about the class kind, if it's a "class" or "interface".
aoqi@0:      *
aoqi@0:      * @param cd the class being documented
aoqi@0:      * @param contentTree the content tree to which the information will be added
aoqi@0:      */
aoqi@0:     protected void addPartialInfo(ClassDoc cd, Content contentTree) {
aoqi@0:         addPreQualifiedStrongClassLink(LinkInfoImpl.Kind.TREE, cd, contentTree);
aoqi@0:     }
aoqi@0: 
aoqi@0:     /**
aoqi@0:      * Get the tree label for the navigation bar.
aoqi@0:      *
aoqi@0:      * @return a content tree for the tree label
aoqi@0:      */
aoqi@0:     protected Content getNavLinkTree() {
aoqi@0:         Content li = HtmlTree.LI(HtmlStyle.navBarCell1Rev, treeLabel);
aoqi@0:         return li;
aoqi@0:     }
aoqi@0: }